EP0010203B1 - Agitateur mécanique pour la récolte continue de fruits - Google Patents
Agitateur mécanique pour la récolte continue de fruits Download PDFInfo
- Publication number
- EP0010203B1 EP0010203B1 EP79103658A EP79103658A EP0010203B1 EP 0010203 B1 EP0010203 B1 EP 0010203B1 EP 79103658 A EP79103658 A EP 79103658A EP 79103658 A EP79103658 A EP 79103658A EP 0010203 B1 EP0010203 B1 EP 0010203B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crank
- bars
- sway
- sway bars
- pendulum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003306 harvesting Methods 0.000 title claims description 16
- 235000013399 edible fruits Nutrition 0.000 title description 22
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000009527 percussion Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000002420 orchard Substances 0.000 description 7
- 244000141359 Malus pumila Species 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 235000021016 apples Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 244000144730 Amygdalus persica Species 0.000 description 1
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 241000883306 Huso huso Species 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000006029 Prunus persica var nucipersica Nutrition 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 244000017714 Prunus persica var. nucipersica Species 0.000 description 1
- 241000220324 Pyrus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 235000003095 Vaccinium corymbosum Nutrition 0.000 description 1
- 240000000851 Vaccinium corymbosum Species 0.000 description 1
- 235000017537 Vaccinium myrtillus Nutrition 0.000 description 1
- 241000219094 Vitaceae Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000021028 berry Nutrition 0.000 description 1
- 235000021014 blueberries Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005089 fruit drop Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000014571 nuts Nutrition 0.000 description 1
- 235000021017 pears Nutrition 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 235000021018 plums Nutrition 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D46/00—Picking of fruits, vegetables, hops, or the like; Devices for shaking trees or shrubs
- A01D46/26—Devices for shaking trees or shrubs; Fruit catching devices to be used therewith
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18184—Crank, pitman, and lever
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18544—Rotary to gyratory
Definitions
- This invention relates to the mechanized harvesting of horticultural crops. Of particular interest is the harvesting of fruit from fully dwarfed and semidwarf trees, and especially apple trees grown in hedgerow orchards.
- U.S. Patent No. 3,187,493 discloses a stop-and-go, bush straddling berry harvester equipped with oscillating bars for shaking the bushes.
- F. Berns- hausen shows a continuous over-the-row harvesting system employing either a telescoping clamp-type trunk shaker or an oscillating belt trunk shaker which allows the harvester to pass down the hedgerow without stopping.
- U.S. Patent No. 4,064,683 Tennes et al.
- the object underlying the invention consists in providing an improvement of a harvester according to the preamble of claim 1 in such a manner that fruit can be harvested selectively in response to its hanging loosely or tight, i.e., carefully.
- the invention uses the swaying bars themselves - by means of their sections tapering outwardly at the front - at the same time also as guiding means for adjusting the swaying bars to staggered tree-trunks.
- the continuous mechanized system of the instant invention has application for all types of horticultural crops, or fruits, which can be harvested by shaking the plants upon which they grow.
- the terms "crops” and “fruits” as used throughout the disclosure are defined herein in their broadest sense to include any product of plant growth useful to man or animals. Examples without limitation thereto are apples, pears, peaches, nectarines, plums, cherries, citrus fruit, cane fruit, blueberries, grapes, nuts, pine cones, and others. Of particular interest are fruits grown on fully dwarfed or semidwarf trees grown in hedgerows, especially apples. In the ensuing description, it is understood that reference to trees is merely illustrative, and that the invention is applicable to cane, stalk, and vine planes as well.
- continuous us used throughout the disclosure means “without cessation.”
- the harvesting apparatus incorporating the instant shaker assembly is continuous in the sense that its forward motion does not cease as it passes along the tree rows during harvesting, notwithstanding that the shaker assembly may be operated either continuously or in intermittent cycles.
- the power frame may be operated in a non-continuous manner if so desired.
- the novel shaker assembly is designed for use in combination with a conventional over-the-row power frame 1.
- the frame itself does not constitute part of the invention and will be described only to the extent necessary for an understanding of how it cooperates with the invention.
- the frame basically comprises vertical struts 2 interconnected by longitudinal side members 3 and by upper transverse members 4. It includes an operator's cab 6 and is powered by a motor and gearing mechanism (not shown) for driving the transport wheels 8. It may also be equipped with side and top enclosure panels, foliage rollers, catching frames, conveyors, and other crop handling apparatus as disclosed in related Patent US-A-4,064,683, referred to above and herein incorporated by reference.
- the general design of the power frame permits its adaptation to other horticultural functions including planting, spraying, fertilizing, pruning, and plant removal.
- the components for each operation can be designed for ready attachment, permitting rapid conversion between functions. This versatility enhances the economic attractiveness of the instant shaker assembly.
- the shaker assembly comprises a pair of substantially identical shaker units 10, symmetrically mounted on the respective sides of the power frame.
- the units are designed for synchronous side-by-side operation, thereby imparting a swaying motion to the horticultural trees.
- Each shaker unit comprises a sway bar 11 which is positioned parallel to the ground and at a height for physically contacting the trunk or center leader of the tree 90.
- a section of the sway bar 12 near the rear is substantially straight and parallel to the corresponding section of the other bar.
- Each is tapered outwardly at the rearmost end 13 where the amplitude of motion is greatest and where the bar would otherwise tend to gouge the tree.
- the forward sections 14 of the sway bars also diverge outwardly from one another to permit easy entry of the tree.
- the bars are preferably constructed from steel tubing or other lightweight material which is sufficiently durable to withstand the stresses incurred during operation.
- the medial surface may also be covered with a wear-resistant, low friction padding 15 for minimizing abrasive damage to trees having particularly tender bark.
- the forward ends of the sway bars are pivotally secured at points 19 to front mounts 20 by bearings 21 or similar means.
- the mounts are fastened to the power frame by bolts 22 and brackets 23 so as to be vertically adjustable.
- An elastic cushioning material 24 may be provided between the mounts and power frame for dampening any transmitted vibrations.
- the straight sections 12 of the sway bars near the rear are pivotally fastened to connecting rods 30 at points 31 by ball joints or other means permitting freedom of movement in both the vertical and horizontal planes.
- the rods are oriented approximately perpendicular to the sway bars and the approximate centers of percussion along the lengths of the bars under loaded conditions are selected as the actual connecting points 31.
- the connecting rods are reciprocated by pendulum-mounted crank assemblies 40 as illustrated in Figs. 2, 3 and 4.
- the rods and crank assemblies collectively comprise the reciprocating mechanisms.
- Each rod is secured to a crank pin 41 by a flexible joint 42 similar to that used for connection to the sway bar at point 31.
- the crank pin is removably secured into one of a series of crank arm adjustment holes 43 in inertial wheel 44.
- the crank pin and inertia wheel together constitute a crank.
- Spacer 45 allows for clearance between the rod and the wheel as the angle between them decreases.
- the inertia wheel is positioned in the approximate center of percussion of the pendulum 50 and is rotated by means of an extendable crankshaft 46 driven by hydraulic motor 80 or other suitable power source.
- crankshaft is journalled to the top plate 52 of the pendulum bob 51 by means of bearings 47.
- a universal joint 48 in line with pivot pins 58 connects the crankshaft to power shaft 81 to permit oscillation of the crank assembly with the pendulum. It is readily apparent that the design of the crank assembly enables it to transform the rotary motion of the power source into the reciprocating motion of the rod.
- the pendulum bob 51 comprises aforementioned top plate 52 connected on either end to bottom plate 53 by means of side plates 54.
- the side plates are equipped with any number of bolt holes 55 for attachment of additional weights 64 as desired.
- the pendulum bob hangs by adjustable arms 56 from pivot plates 57 and pivot pins 58.
- the pivot plates are secured to pendulum supports 59 which are attached to longitudinal side members 3 of power frame 1. While it is understood that the pendulum could be hung by alternate means such as by mounting it on an elastic material, it is preferred to restrict its rotational movement to the transverse vertical plane.
- the pendulum is free- swinging in the sense that its rotation about pivot pin 58 is not positively linked to the stroke of the crank assembly and the sway bar.
- the motor 80 which drives the crank assembly does not also directly drive the pendulum.
- the freedom of pendulum rotation permits the sway bar spacing to vary as necessary to compensate for oversized trees or misalignment over the hedgerow.
- a shock absorber 65 or other conventional dampening device attached to mounts 66 and 67 is also provided between the pendulum arm and the power frame in order to further dampen vibrations transmitted from the sway bars and to provide positional stability to the pendulum as the power frame passes over irregular surfaces.
- a synchronizing assembly 70 maintains the respective crank assemblies at identical speeds of rotation and in phase with one another.
- the assembly in Figs. 2 and 4 comprises a sprocket 71 mounted on each of the power shafts 81.
- the respective sprockets are positively interconnected by chain 72, which may be horizontally supported by guide bearings or idler sprockets (not shown) as known in the art.
- chain 72 which may be horizontally supported by guide bearings or idler sprockets (not shown) as known in the art.
- equivalent modes of synchronization such as cranks or geared rods could be substituted for the chain assembly.
- the shaker assembly is adjusted for effective harvesting by spacing apart the sway bars under no-load conditions slightly more than the average tree diameter to be harvested. This adjustment is made by employing either a variable length connecting rod or interchangeable rods of different lengths.
- the height of the sway bars above the ground may be varied by adjusting the position of the front mounts 20 and by adjusting the lengths of the pendulum arms 56 by means of pins 61 and holes 62. To minimize the energy transmitted to the root system, it is preferred to contact the tree at its percussion point, which is normally up from the ground about one-third of the tree's height.
- the weight of the pendulums with respect to the energy transmitted thereto from the sway bars may be optimized by varying the amounts of additional weights 64 which can be bolted to side plates 54.
- the sway frequency is controlled by the speed of the motors 80 powering inertia wheels 44, and the amplitude is dependent upon the selected crank arm between crank pin 41 and the center of the inertia wheel.
- the crank arm can be varied by repositioning the crank pin 41 in one of the adjustment holes 43.
- the amplitude of vibration is also a function of the distance along the sway bar from front pivot point 19, increasing from zero at the pivot point to a maximum value near the rear of the bar.
- the shaking period that is, the duration that the sway bars are in contact with a given tree is related to both the length of the contact zone of the sway bars and the speed of advancement of the power frame along the tree row. The length of the bars should therefore be selected in accordance with the crop type and maximum advancement speed at which an acceptable percentage of the crop can be recovered.
- the trees have been pruned so that the sway bars can contact the trunk or central leader unencumbered by interfering branches and other foliage in the horizontal plane of the bars.
- preliminary tests have proven that such pruning is not necessary for efficient harvesting, particularly for the smaller varieties of trees, and of course for bushes, canes, and vines.
- the sway bars alternatively contact the tree on opposite sides as the bars oscillate in a synchronized side-to-side motion.
- the bars move simultaneously, first to one side, then to the other side, thereby acting to maintain the spacing between them substantially constant at any given point along their length.
- the initial contact made by the more widely spaced forward sections of the sway bars is sufficiently gentle to remove only the most readily detachable fruit.
- the bar spacing diminishes and the amplitude of oscillation increases as a function of the distance from the front pivot to the point of contact, resulting in a greater energy input to the hedgerow and in the sequential recovery of progressively tenacious fruit.
- Substantially all of the reaction energy transmitted back through the sway bars and the connecting rods is absorbed by the free-swinging pendulums.
- the pendulums simply spread apart to compensate for the difference.
- the efficacy of the shaker assembly in regard to both energy input and reaction energy absorption is attributed to the critical placement of the inertia wheels and connecting rods in the approximate centers of percussion of the pendulums as noted above.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
- Agricultural Machines (AREA)
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/945,954 US4208861A (en) | 1978-09-26 | 1978-09-26 | Mechanical shaker assembly for continuous harvesting of fruit |
US945954 | 1992-09-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0010203A1 EP0010203A1 (fr) | 1980-04-30 |
EP0010203B1 true EP0010203B1 (fr) | 1984-09-19 |
Family
ID=25483751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79103658A Expired EP0010203B1 (fr) | 1978-09-26 | 1979-09-26 | Agitateur mécanique pour la récolte continue de fruits |
Country Status (7)
Country | Link |
---|---|
US (1) | US4208861A (fr) |
EP (1) | EP0010203B1 (fr) |
BR (1) | BR7906145A (fr) |
CA (1) | CA1104352A (fr) |
DE (1) | DE2967223D1 (fr) |
ES (1) | ES484429A1 (fr) |
IL (1) | IL58293A (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2516742A1 (fr) * | 1980-10-10 | 1983-05-27 | Corneloup Sa | Machine a vendanger |
US4418521A (en) * | 1981-12-11 | 1983-12-06 | Fmc Corporation | Harvester with selective force balanced shaking mechanism |
FR2674725A1 (fr) * | 1991-04-03 | 1992-10-09 | Duffaut Alain | Machine automatique pour recolter les fruits. |
US7635533B2 (en) * | 2002-02-27 | 2009-12-22 | Symyx Solutions, Inc. | Fuel cell electrocatalyst of Pt-Mn-Co |
US9060465B2 (en) | 2012-09-19 | 2015-06-23 | Oxbo International Corporation | Trunk shaker isolator |
EP4218396A1 (fr) | 2020-11-26 | 2023-08-02 | Agreencrop S.r.l. | Agitateur |
EP4427574A1 (fr) | 2021-11-03 | 2024-09-11 | Ianus Ingenieria, S.L.U. | Dispositif de vibration en continu et procédé pour la cueillette des fruits d'arbres et d'arbustes |
CN115024090A (zh) * | 2022-05-10 | 2022-09-09 | 青岛农业大学 | 半手持式振动摇果装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2372769A (en) * | 1939-03-18 | 1945-04-03 | J G De Remer Res Corp | Washing machine |
US2881620A (en) * | 1954-02-23 | 1959-04-14 | Vibro Plus Corp | Arrangement in pendulum vibrators |
US3187493A (en) * | 1962-11-30 | 1965-06-08 | Ernest F Harrett | Harvester |
US3584446A (en) * | 1970-01-30 | 1971-06-15 | Fritz Bernshausen | Tree fruit cultivating and harvesting system |
US3812662A (en) * | 1970-09-01 | 1974-05-28 | B Savage | Tree shaker with tree embracing clamp |
US3771301A (en) * | 1972-01-04 | 1973-11-13 | Bowie Ind Inc | Hydraulically actuated device for shaking trees |
US3793815A (en) * | 1973-01-29 | 1974-02-26 | Woudstra J Mid State Mfg Co | Tree shaker |
DE2349103C3 (de) * | 1973-09-29 | 1978-05-11 | Karl 5000 Koeln Coenen | Vorrichtung zum Ernten von Früchten |
FR2281056A1 (fr) * | 1974-08-09 | 1976-03-05 | Anvar | Machine agricole pour la recolte des fruits |
US4064683A (en) * | 1976-05-14 | 1977-12-27 | The United States Of America As Represented By The Secretary Of Agriculture | Continuous mechanized harvesting of horticultural crops |
-
1978
- 1978-09-26 US US05/945,954 patent/US4208861A/en not_active Expired - Lifetime
-
1979
- 1979-09-19 CA CA335,925A patent/CA1104352A/fr not_active Expired
- 1979-09-21 IL IL58293A patent/IL58293A/xx unknown
- 1979-09-25 BR BR7906145A patent/BR7906145A/pt unknown
- 1979-09-25 ES ES484429A patent/ES484429A1/es not_active Expired
- 1979-09-26 EP EP79103658A patent/EP0010203B1/fr not_active Expired
- 1979-09-26 DE DE7979103658T patent/DE2967223D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES484429A1 (es) | 1980-09-01 |
DE2967223D1 (en) | 1984-10-25 |
BR7906145A (pt) | 1980-06-03 |
EP0010203A1 (fr) | 1980-04-30 |
US4208861A (en) | 1980-06-24 |
CA1104352A (fr) | 1981-07-07 |
IL58293A (en) | 1981-09-13 |
IL58293A0 (en) | 1979-12-30 |
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